Hi CDs,
One of my relative is in Gulf, working as a Chemical engineer, he had undergone some surgical procedures in both of his internal ears, because of some medical conditions.
Now he is healthy otherwise, continuing his job in a chemical plant, his hearing ability is O.K, but not upto the level of clearing an audiometry test.

He wants to know if the chemical plants in canada are conducting audiometry tests as a part of hiring process?

Your inputs will be greatly appreciated.